From 54420b327e2ef5b5c5d3e26445e6446032f822f7 Mon Sep 17 00:00:00 2001
From: Iuri Matias <iuri.matias@gmail.com>
Date: Sat, 11 Mar 2017 12:27:10 -0500
Subject: [PATCH] detect when ethereum node comes back online and redeploy

---
 lib/core/services_monitor.js | 11 +++++++++++
 lib/index.js                 | 10 +++++++++-
 2 files changed, 20 insertions(+), 1 deletion(-)

diff --git a/lib/core/services_monitor.js b/lib/core/services_monitor.js
index 04febab61..2685c5c2e 100644
--- a/lib/core/services_monitor.js
+++ b/lib/core/services_monitor.js
@@ -1,5 +1,8 @@
 var async = require('../utils/async_extend.js');
 
+// TODO: need to separate colors from states
+// i.e use status: /on|off|warn/ not /red|green/
+// it's up to the logger or console to determine the color
 var ServicesMonitor = function(options) {
   this.events = options.events;
   this.logger = options.logger;
@@ -16,7 +19,15 @@ ServicesMonitor.prototype.initCheck = function(checkName) {
   if (!check) { return false; }
 
   self.events.on('check:' + checkName, function(obj) {
+    // TODO: see todo above
+    if (check && check.status === 'red' && obj.status === 'green') {
+      self.events.emit('check:backOnline:' + checkName);
+    }
+    if (check && check.status === 'green' && obj.status === 'red') {
+      self.events.emit('check:wentOffline:' + checkName);
+    }
     self.checkState[checkName] = obj.name[obj.status];
+    check.status = obj.status;
     self.events.emit("servicesState", self.checkState);
   });
 
diff --git a/lib/index.js b/lib/index.js
index fc0c360e1..4ed7ad389 100644
--- a/lib/index.js
+++ b/lib/index.js
@@ -103,12 +103,21 @@ var Embark = {
           engine.logger.info("loaded plugins: " + pluginList.join(", "));
         }
 
+        engine.startMonitor();
         engine.startService("web3");
         engine.startService("pipeline");
         engine.startService("abi");
         engine.startService("deployment");
         engine.startService("ipfs");
 
+        engine.events.on('check:backOnline:Ethereum', function() {
+          engine.logger.info('Ethereum node detected..');
+          engine.config.reloadConfig();
+          engine.deployManager.deployContracts(function() {
+            engine.logger.info('Deployment Done');
+          });
+        });
+
         engine.deployManager.deployContracts(function() {
           engine.startService("fileWatcher");
           if (options.runWebserver) {
@@ -117,7 +126,6 @@ var Embark = {
               port: options.serverPort
             });
           }
-          engine.startMonitor();
           callback();
         });
       }